The invention relates to the technical field of
sewage treatment, in particular to a method and device for purifying printing and
dyeing wastewater based on TAPB-DMTA COF Fenton-like synergistic
bacteria and
algae. According to the specific technical scheme, the printing and
dyeing wastewater purification method comprises the following steps that 1, printing and
dyeing wastewater is introduced into a photocatalytic Fenton-like reactor,
porosity-modified photocatalysts TAPB-DMTA COF and H2O2 are added into the photocatalytic Fenton-like reactor, a baffle plate is arranged in the photocatalytic Fenton-like reactor, the angle of the baffle plate is 30-45 degrees, and the angle of the baffle plate is 30-45 degrees; a first illumination module is arranged outside the photocatalytic Fenton-like reactor; and (2) introducing the wastewater treated in the step (1) into an algal-bacterial symbiotic SNAD reactor, and adding a photocatalyst and a multi-walled
carbon nanotube into the algal-bacterial symbiotic SNAD reactor. The photocatalytic Fenton-like reactor disclosed by the invention takes
porosity modified TAPB-DMTA COF as a photocatalyst aiming at dyestuff which is difficult to degrade, so that complete degradation of the dyestuff is realized. For
ammonia nitrogen pollutants, the bacterial-
algae symbiotic SNAD reactor cancels traditional mechanical
aeration, the microbial
extracellular electron acquisition capability is optimized through a biological
enhancer, and efficient and green removal of
total nitrogen can be realized without adding an organic
carbon source.